8) Seasmoke

Former Rider: Laenor Velaryon
The son of Corlys “Sea Snake” Velayron and Rhaenys Targaryen, Laenor rode Seasmoke into battle to save Daemon when he staged his one-man assault on the Crabfeeder and his pirates in episode three. However, when Laenor staged his own death and fled with his lover in “Driftmark,” he left Seasmoke behind. The dragon is currently unclaimed and still at the ancestral home of the Velaryons.